111010101149 has 2 divisors, whose sum is σ = 111010101150. Its totient is φ = 111010101148.

The previous prime is 111010101101. The next prime is 111010101203. The reversal of 111010101149 is 941101010111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 99960307225 + 11049793924 = 316165^2 + 105118^2 .

It is a cyclic number.

It is not a de Polignac number, because 111010101149 - 2²⁴ = 110993323933 is a prime.

It is a super-2 number, since 2×111010101149² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 111010101149.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111010101049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55505050574 + 55505050575.

It is an arithmetic number, because the mean of its divisors is an integer number (55505050575).

Almost surely, 2^111010101149 is an apocalyptic number.

It is an amenable number.

111010101149 is a deficient number, since it is larger than the sum of its proper divisors (1).

111010101149 is an equidigital number, since it uses as much as digits as its factorization.

111010101149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 20.

The spelling of 111010101149 in words is "one hundred eleven billion, ten million, one hundred one thousand, one hundred forty-nine".